Likewise, there have been described five SGCs with ALK alterations until now: a myoepithelial carcinoma with MSN-ALK rearrangement [18], a secretory carcinoma with CTNNA1-ALK rearrangement [19], an intraductal carcinoma with STRN-ALK rearrangement [20], and two salivary gland carcinomas—one with HNRNPH3-ALK and another with EML4-ALK gene fusion [21]. This evidence concerns the gene ALK and ductal breast carcinoma in situ.